GT BUMP 1999 VS Diamondback GRIND 2008 specs comparison
GT Bump
General Infos| Model | Bump |
| Manufacturer | GT |
| Year of production | 1999 |
| Current price | Check price Here ==> |
| Color choice |
- Khaki -Atomic Blue |
| Sizes |
- Not available |
| Sizes |
- Not available |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 1.75 (inches) Powerlite Retro-Tread Front: 20 X 2.125 (inches) Powerlite Retro-Tread |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | Dia-Compe MX-97 Rear Levers Dia-Compe 990 Rear Brakes |
| Hubs for disc brakes | GT Mohawk |
| Rims manufacturer | 48-hole Weinmann ZAC-X |
| Spoke nipples type | Brass Nipples |
| Spoke wheel | 2.0 (millimeters) Straight Gauge Steel |
Frame and Body Specs
| Frame materials | Chromoly |
| Frame type | Welded |
| Handlebar construction | GT |
| Handlebar extender | Not Available |
| Handlebar stem details | GT Piston |
| Headset size | 1 1/8 (inches) Threadless Aheadset SX-1 |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | One Piece |
| Crankset parts and sizes | 44 Teeth GT 1-piece Chromoly |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
GT Bump Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Oversize Unicrown Crown Chromoly |
| Fork type | GT |
Other Specs of GT Bump
| Component group sets | Not Available |
| Pedals details | GT Aluminum Platform |
| Rear shock absorber | Not Available |
| Saddle seat | GT |
| Seat post extension | 31.8 (millimeters) Diameter GT Chromoly Micro-adjust |
Diamondback Grind
General Infos| Model | Grind |
| Manufacturer | Diamondback |
| Year of production | 2008 |
| Current price | Check price Here ==> |
| Color choice |
- Pewter -Dark Orange |
| Sizes |
- 18 top tube (inches) |
Wheels And Breaking System
| Bike front tire | Rear: 20 X 2.1 (inches) DB Cellblock Front: 20 X 2.10 (inches) DB Cellblock |
| Bike rear tire | Not Available |
| Bike wheel size | 20 (inches) Wheels |
| Brakeset type | LeeChi Alloy With Reach Adjust Levers LeeChi Side-pull Front and LeeChi Rear With SST DC Amplifier Rear Brakes |
| Hubs for disc brakes | Rear: Steel 14 (millimeters) Axle Front: Steel 3/8 (inches) Axle |
| Rims manufacturer | 48-hole 30 (millimeters) Wide Aluminum |
| Spoke nipples type | Not Available |
| Spoke wheel | 14ga. Straight Gauge |
Frame and Body Specs
| Frame materials | Hi-tensile Steel |
| Frame type | TIG-welded |
| Handlebar construction | Hi-ten Steel 2-piece |
| Handlebar extender | Optional |
| Handlebar stem details | DB Alloy 4-bolt |
| Headset size | 1 1/8 (inches) Threadless FSA |
Gearing Specifications
| Bicycle chain | 1/2 X 1/8 (inches) KMC Z410 |
| Bottom bracket shell width | Not Available |
| Bottom bracket type | Loose Ball |
| Crankset parts and sizes | 44 Teeth 165 (millimeters) Steel 1-piece |
| Gear shift levers | Not Available |
| Rear gear set | 16 Teeth 1-speed |
Diamondback Grind Fork System Data
| Derailleur (Front) | Not Available |
| Derailleur (Rear) | Not Available |
| Fork material | Unicrown Crown Hi-tensile Steel |
| Fork type | Diamondback |
Other Specs of Diamondback Grind
| Component group sets | BMX Mix |
| Pedals details | DB Sound Alloy |
| Rear shock absorber | Not Available |
| Saddle seat | DB BMX Padded |
| Seat post extension | 25.4 (millimeters) Diameter Steel Pillar |
Related Bike comparison
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Useful links and guides ....
- To know more about this exacte bike, GT provided us with the latest version of its Bump bike manual
- Find All parts, tires and accessories of GT Bump Freestyle here
- Get your Diamondback Grind manual book version yo know further about this bike
- Saddles, tires And mechanical parts for Diamondback Grind Freestyle here